336
FNUS73 KGRR 221630
FWSGRR

Spot Forecast for Comstock MSGA...MIDNR
National Weather Service Grand Rapids MI
1230 PM EDT Wed May 22 2024

Forecast is based on ignition time of 1100 EDT on May 23.
If conditions become unrepresentative, contact the National Weather
Service.

Please contact our office at (616) 949-5150, if you have questions
or concerns with this forecast.

.DISCUSSION...
Dy weather on Thursday will be followed by increasing chances for
rain on Friday, with showers and thunderstorms expected by late
Friday morning into the afternoon.

.THURSDAY...

Sky/weather.........Sunny (20-30 percent).
Temperature.........69 at ignition...Max 76.
RH..................55 percent at ignition...Min 37 percent.
Wind (20 ft)........Winds southwest at 8 mph at
                    ignition...otherwise Southwest winds 7 to 12
                    mph.
Mixing height.......2600 ft AGL at ignition...otherwise 5600 ft
                    AGL.
Mixing winds........Southwest 10 to 17 mph.
Smoke dispersal.....360 /good/ at ignition. Max...1000 /excellent/.
Haines Index........5 or moderate potential for large plume
                    dominated fire growth at ignition...max 5.

TIME (EDT)      11 AM  1 PM   3 PM   5 PM   7 PM   9 PM
Sky (%).........45     24     10     2      4      5
Weather cov.....
Weather type....NONE   NONE   NONE   NONE   NONE   NONE
Tstm cov........
Temp............69     72     73     75     73     67
RH..............55     48     43     37     40     50
20 ft wind......SW 8   SW 10  SW 12  SW 10  SW 7   SW 2
20 ft wind gust.15     17     17     16     12     8
Mix hgt (ft)....2600   4800   5600   4500   1800   200
Mixing wind.....SW 14  SW 17  SW 17  SW 16  SW 10  SW 8
Haines index....5      5      5      5      5      5
Smoke disprsl...360    800    1000   730    190    20

.THURSDAY NIGHT...

Sky/weather.........Mostly clear (0-10 percent).
Temperature.........Min 54.
RH..................Max 72 percent.
Wind (20 ft)........Southwest winds around 5 mph in the evening
                    becoming light.
Mixing height.......200 ft AGL.
Mixing winds........South 8 to 9 mph.
Smoke dispersal.....10 (poor).
Haines Index........5 or moderate potential for large plume
                    dominated fire growth.

.FRIDAY...

Sky/weather.........Mostly sunny (30-40 percent). Chance of showers
                    in the afternoon. Slight chance of
                    thunderstorms late in the day.
Temperature.........Max 82.
RH..................Min 44 percent.
Wind (20 ft)........Southeast winds 5 to 7 mph shifting to the
                    south 7 to 8 mph with gusts to around 20 mph in
                    the afternoon. Gusty and erratic winds expected
                    near thunderstorms late in the day.
Mixing height.......6100 ft AGL.
Mixing winds........South 9 to 16 mph.
Smoke dispersal.....40 (poor) early in the morning increasing to
                    960 (excellent) in the afternoon.
Haines Index........5 or moderate potential for large plume
                    dominated fire growth.

$$
Forecaster...Ostuno
Requested by...Jeff Vasher
Type of request...PRESCRIBED
.TAG 2414911.0/GRR
.DELDT 05/22/24
.FormatterVersion 2.0.0
.EMAIL vasherj@michigan.gov